kieselgur

例句：

1. 1. The soil in the region is rich in potassium sulfate, which is essential for plant growth.
   该地区的土壤富含钾硫酸盐，对植物生长至关重要。
2. 2. Potassium sulfate is commonly used as a fertilizer to improve soil quality and increase crop yields.
   钾硫酸盐常被用作肥料，以改善土壤质量并提高作物产量。
3. 3. In agriculture, potassium sulfate is often applied to plants to promote root growth and enhancenutrient absorption.
   在农业中，通常将钾硫酸盐施于植物上，以促进根的生长和增强养分吸收。